Date: Mon, 30 Mar 2020 10:58:46 -0400
From: Bill Gunshannon <bill.gunshannon at
<mailto:bill.gunshannon at hotmail.com>>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org
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Haven't given up on DIBOL. May try installing the RT-11 version and
see if it runs.
But now another language of interest has reared its ugly head. :-)
Anybody have an image of the tape for APL-11? Manual claims it
runs on all of the PDP-11 OSes and it is another language from
my past that I haven't touched (other than to read some programs
out of curiosity) in more than two decades.
I have the APL-11 V2.1 source files on a RL02 disk image. I will make it available at
Once you mount the disk image with Simh, the are two ready to run task images that
will run under RSX11M or M+
In [201,200]APL6OK.TSK and APL7OK.TSK that are the REAL*4 and REAL*8 versions of APL-11.
On the disk are the
Original .MAC sources as well as files from a RSX SIG tape that modified APL-11 for I/D
under RSX11M+ that increased
The workspace (.BXWA from ~30000 to ~60000 bytes). It also contains a character set for
Vt220 for the APL character set.
When you install the APL task experiment with the /INC to maximize the available
workspace, On my system, I can
INS APL6.TSK/INC=37000 to max the workspace for the single precision version.
Also, the scanned APL-11 reference manual can be downloaded at
and the APL11 installation guide at http://www.rsx11m.com/APL11ins.pdf
The RSX SIG files that have the info to change APL-11 to an I/D RSX11M+ task are at
[370,360] on the RL02 disk. I remember having this work back in the mid-1980s butI have
not been able to get it to work today. If I link it with ODT it seems to blow up when the
first overlay is loaded. If anyone could help with that I?d really appreciate it!
I have the source to something called APL-11 for Unix but it is
not the same thing. Actually, not even close. :-)
Would love to see a few pointers.
Oh, and in case anyone is curious about my endeavors....
The SIMH system I am using now is based on the 11/70 and was built
with only 2M of memory. Why you would do that under SIMH where there
is really no memory constraint at all, I can not fathom. I used to
have a bunch of 11/44's and that has been my favorite since my original
11/24 system died long, long ago./ I am going to configure a SIMH
System using the 11/44 as my model and then reinstall everything in
order to have a really good system for playing with this stuff.
Sure wish there was a way to find some of the third party stuff from
the sourcebooks. A lot of nice software that should have been saved
for historical reasons, if nothing else, has been lost.